Turbine-casing.



0. F. BRUMAN. TURBINE CASING. 7 APPLICATION If'ILm) JAIL'Z. 1912. I

Patented Aug. 20, 1912.

eNiTan sTATEs PAT-aia'T OFFICE.

oTTo i BRUMAN, 8F BERLIN, pEa igANY, ASSIGNOR To ROBERT s. HoTz OFCHICAGO,

ILLINOIS.

TURBINE-CASIN G.

Specification of Letters Patent.

To all whom it may concern: I I

Be it known that I, OTTo F. BRUMAN,

citizen of the Republic of Switzerland, re-

siding at Berlin, Germany, have invented a certain new and usefulImprovement in Turbine-Caslngs, of which thefollowlng 1s a full, clear,concise, and exact description.

My invention relates to a turbine casing made entirely of sheet or platemetal,

and its object is to provide a casing which is light in weight and whichnevertheless possesses the requisite strength and rigidity, and which ischeap to manufacture.

In ordinary turbine designs, the casing is made of cast ironstrengthened by ribs, and,

therefore, such casing is heavy and expensive. As distinguishedfrom suchstructure from boiler tube of commercial size.

- drawings, in which Figures 1 and 2 are side and end elevations,respectively, of a casing embodying my invention.

The casing wall 1 is made of sheet-metal in the form of the ordinaryboiler tube, and,

-steady ring for the HENRY as shown, is of one piece. There is thus nopossibility of leakage through the sidewalls of the casing. At itsopposite ends the easing 1 is provided with flanges 2, 2 which may beeither bent from the-sheet metal or may be welded to the end of thetubing.

The exhaust pipe 3 also consists of sheet Patented Aug. 20, 1912,Application filed January 2, 1912. Serial No. 668,893.

metal, the longitudinal seam of which is formed by welding togetherthe'two ends of the sheet metal of which said pipe is made. Thesupporting feet 4: are made of pressed steel and are welded to theexterior of they casing. v

ring '5 secured upon the interior of the casing serves as'a sulpportingend piece or against it. I

What I claim is: In a turbine casing, the combination with a sheet metaltube of one piece, of flanges secured to the end of said tube, a sheetmetal iaphragms which rest exhaust pipe welded to said tube, and sheetmetal supporting feet welded upon the exterior of said tube.

In witness whereof l hereunto' subscribe my name this 4th day ofDecember, A. D., 1911.

' OTTO F.,BRUMAN. Witnesses:

' HASPER, WOLDEMAR HAUPT.

Copies of this patent m'arbe obtained for fivecents each, byaddres'ising' the Commissionr'of Patents,

' -Wa;h1ngton, D. G.

